摘要
以准噶尔盆地中央1区块侏罗系三工河组为例,改进成岩效应模拟研究方法,选取单井成岩指标镜质体反射率、甾烷异构化指数、粘土矿物伊/蒙混层中蒙皂石含量、古地温和石英加大体积含量来模拟侏罗系储层的成岩演化过程,建立单井纵向成岩演化序列。在此基础上模拟侏罗系三工河组的成岩史,得到平面上成岩演化阶段的空间展布特征和趋势,并对三工河组储层进行成岩相评价。研究表明,改进后的方法能够预测不同地史时期的成岩阶段和生、储、盖层的发育;在研究区东北侧的成岩阶段为晚成岩A1期,西北侧和南侧为晚成岩A2期。
The method of effect-simulation of diagenesis was improved by taking Jurassic Sangonghe formation in centric block 1 of Junggar Basin as an example. Jurassic reservoir＇s evolutionary process of diagenesis was simulated by diagenetie parameters including vitrinite-reflectance, sterane isomerization index, the smeetite content in illite/smectite mixed layer, Paleogeotemperature and the percentage content of authigenie quartz. And the lengthways evolvement sequence of diagenesis of single well was established. The special distributing character and trend of planar diagenetic evolutive phase were acquired by simulating diagenetic history of Jurassic Sangonghe formation, and diagenetic facies was appraised. The results show that the diagenetic stages of different geologic history and distribution of source-reservoir-cap can be predicted by the improved method. The diagenetics stages in northeast of research area is A1 of late diagenetic stage, and northwest and south of research area is A2 of late diagenetic stage.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第2期1-6,共6页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家自然科学基金项目(2001BA605A)
关键词
准噶尔盆地
成岩作用
效应模拟
成岩阶段
成岩史
Junggar Basin
diagenesis
effect-simulation
diagenetie stage
diagenetic history
